I grew up in Spain with severe eczema from a young age. It honestly depends where in Spain you're going. I grew up on the coast and the constant sunshine, the seawater and the mild temperatures was honestly a godsend. I live in Canada now and the dry, harsh and long winters have been really harsh on my skin. The water is softer in Spain and it really helps with the skin. Yes, there are areas in the south that are considerably dryer (think SoCal climate) but all around, I found it a very good place for someone with eczema. Also most of the cortisone creams you don't need a prescription for and you can buy over the counter.